Hi Simon, seems you have a lot on your plate. I relate to the feeling guilty, but you shouldn't be the only one to shoulder the responsibility. Your brother/sister are using a cop-out to get you to do the job every single time. Why not have a talk with them and tell them you would appreciate some cooperation rather than single-handedly handling your dad...

You do need time for yourself, by continually giving support - and not getting back as much support and caring, one does feel emotionally drained. And it doesn't help our self-esteem/confidence levels (e.g. we are always there for X, but who is there for me). First and foremost, you need to take care of yourself - e.g. talk to a friend when you are feeling low, go out for a walk, put some nice music on, or exercise...

You shouldn't feel guilty and it is not selfish. It is great to always be there for others, but for one, we are allowed a downtime as we are only human. Secondly, if you are emotionally drained how can you keep giving of yourself?? Once you 'recuperate', then you'll be able to help more efficiently. But you should not hesitate to say "time out for me" to your bro/sister. There is absolutely nohing wrong with that.

Hope you feel better today.